Abstract：In order to study spatial-temporal changes of cultivated land quantity and its variations in Henan province during 1996—2103, five measure models were used to analyse the internal changes and provide supports for the cultivated land regulation and policy. The results show that: ( 1) cultivated land in Henan province showed a downward trend mainly because construction land expansion and ecological cropland-conversion during 1996—2013; ( 2) the spatial difference of cultivated land quantity was large and had regional differences.The higher the index of cultivated land location, the smaller the relative change of cultivated land. The smaller the cultivated land area index, the higher relative change of cultivated land. It reflected the effects of the aggregation degree of regional cultivated land on arable land changes; ( 3) the cultivated land gravity and economic gravity southward migration and moving track is contrary. It indicated that the development of economy and the reducing of the cultivated land were synchronous; ( 4) We should be based on the characteristics of cultivated land change and its correlation with social and economic development to build a long-term based cultivated land regulation and policy system.

Keyword：cultivated land quantity;spatial-temporal dynamics;Henan province;variation characteristics;